Car-loading apparatus



May 6 1924.

F. A. KREHBIEL CAR LOADING APPARATUS Filed Dec. 18. 1920 3 Sheets-Sheet l W h MWNMJ mm m I n Y Rm iiFli OOOOOOOO 5 Sheets-Sheet 2 Qwi 3 HHHHMHII 8 R I m 3 W 3. Q

o om E m mm V MW r M 1 44 May 6 1924.

F. A. KREHBIEL CAR LOADING APPARATUS Filed Dec. 18 1920 F. A. KREHBIEL cm LOADING APPARATUS May 6 3 S heets-Sheet 3 Filed Dec. 18. 1920 mama aw w. 1

mu rk Patented May 6, 1924.

'U NITTED FREDERICK A. KREHBIEL, or magmas, LLINOIs, VASSIGENQR To KREHBIEL COM--- PANY, or CHICAGO, ILLINOIS, Aco PoItATIonon ILLINOIS.

T all whom it may concern:

Be it known that I, FREDERICK A. KREH- BIEL, a citizen of the United States, residing at Hinsd'ale, in the county of Du Page and State of Illinois, have invented a new and useful Improvement in Car-Loading Apparatusyot which the following i's'a specification.

This inventlon relates generally to impr ovements in conveying and loading appa ratus. An object of this invention istoprovide means for conveying and gradually loading granular materials from a higher level to a lower with a minimum'of breakage.

It is also an object to provide an apparatus of this character with a perpendicularly adjustable inclined discharge or loading chute operating in combinationwith a hori- 2 Zontal or slightly inclined receiving chute It is also an object of my invention toproj vide a loading apparatus which'will permit the inspection and hand-picking 0f the larger coal to remove refuse preliminary' to 2 loading and to-this end I provide a horizon tally disposed reciprocating receiving chute or picking table upon which the coal can becoal and in connection with any other equip ment or apparatus, I shall for illustrative purposes preferably describe its application to the conveying and careful loading of coal. In the screening or grading of coal and *in the handling of the larger coals, such as lump, it is desirable to load the lump coal into the railroad car with a minimum or breakage, and in some instances itmay'be desirable to remove the refuse, such as'rock or slate, by hand picking, and to'this end I have indicated in the illustrations aborizontally reciprocatingpicking table trough cooperating with the inclined loading chute. lVith these and other objects in View my invention consists in the novel construction,

combination and relative position of the parts and members *hereinafter i described and'shown in the accompanying drawings,

Fig. 2 isa plan view 'ofsame; Figure 3 is a-crosssection taken on line 3-3 of Fig. '2; and Fig. 4 isa*cross-sectionfonline 4-4 of Fig. 2, illustrating the pivoted end of the support for the inclined loading chute.

Fig. 5 illustrates an elevation and part section'taken between the pulley 52' and'bearing 51 showing mfinvention employing a horizontally reciprocating picking table chute operating in connection with the inclined-loading chute, and Fig.6 is a plan viewof same. Figures 7 and 8 showrespectively, cross sections taken on line 77 and 8 8 of Fig. 6. Figure 9 is a cross section taken on line 9-''9 of Fig. 5 showing a; detail otthe" driving mechanism which imparts a reciprocating motion to the-horizontal ta v ble whereby the material'is progressively ad vanced or conveyed forwardly to the inclined loading "chute. The inclined chute, ho wever,'being driven from a pair of oppo sitelvmounted eccentrics receives a motion tending to reversethe'flow of the material,

but because of the inclined position of this chute the material will also be moved forward but with-aretarding action which is rather desirable especially when the loading chuteis atitsmaXimum angle of inclination.

Figures -1O and 1 1 illustrate, respectively, si'de elevation'and plan view of a slight modification of thy-invention wherein an inclined loading chute is employed to receive materia'lfr'om a curved angularly disposed chute which is arranged to feed the material to the loading chute. V

Figures 12 and13 are cross sections taken respectively on'lines 12"12'and 1813 of Fig. 11.. i 1

Referring particularly to Figures 1 m4 inclusive, the coal in'thie instance is received bythe slightly inclined receiving chute 20 from the rigl'it angularly disposed chute or screen '21 which is formed at its discharge end to feed the coal ina uniform layer. The

screen or chute may be a movable screen or stationary chute or any other conveying means. The receiving chute as here shown is formed with a bottom 20 and sides 20 slightly converging toward the discharge end. The chute 20 has preferably angular rails 22 formed with horizontal treads to provide support and horizontal movement on the supporting rollers 23 during the lateral reciprocation of the chute. The chute 20 could also be supported on suitable long pendulum hangers and thus reciprocate in a substantially lateral plane with a very slight perpendicular movement which would be practically negligible.

The loading chute 24 is here preferably shown to comprise the bottom 24, parallel sides 24 with the flanged edges 24. Two sets of supporting rollers 25 carried on the shafts within the boxes 27 which are rigidly fixed to the bottom 24*, support the loading chute 24 during its substantially horizontal reciprocatory movement the tracks 28 and 28. a

The tracks 28 and are rigidly fixed to the supporting frame 29 which includes the side members 29 and cross members 29 The frame 29 is movably supported by means of attached side plates 30 which have pivotal support on the bolts 31 between the clip angles 32 rigid with the structure.

The drive for reciprocating the screens comprises a power driven pulley 33 which drives a suitably supported shaft 34 on which are mounted the two eccentrics 36 with connecting rods 37 having operative connection with the upper roller shaft 36 whereby the inclined chute 24 is reciprocated upon the substantially arcuate tracks 28 and 28. A similar eccentric 35, oppos sitely mounted on the shaft 34- for partial counteracting effect of the two chutes,I is provided with a connecting rod 38 for reciprocation of the receiving chute 20.

From the illustrations, it will be obvious that the supporting frame 29 with the pivoted chute 24 can be raised or lowered about the pivotal bolts 31 by any suitable means here shown as a bail 40 having a flexible rope connection 41 which passes over the sheave 42. The free end of the connection 41 can be provided with a ring 39 as shown or with counterweight or can be operatively connected to any hoisting mechanism.

The angle of inclination of chute 24 for loading and trimming positions may be made as desirable and willof course vary with the kind of material handled. The lowest position of the loading chute 24 should preferably be at such angle that the material will not be discharged over same by gravity when the chute is stationary, and

- the maximum raised position can be at the angle at which the material will be conveyed over chute during its reciprocation. Having determined the approximate maximum and minimum angles of inclination of the loading'chute 24, the relative lateral positions of the rollers 25 and 26 can readily be determined to fix the length of the arcuate tracks or guides 28 and 28. The curve of the track or guide 28 will be made with a radius having its center on the center of the pivot pin or bolt 31, and for all practical purposes the track 28 will be of the same radius.

In the modification illustrated by Figs. 5 to 9, inclusive, the construction in general is similar to that of the arrangement de- I scribed above except that in this case the receiving chute 43 is arranged horizontal and adapted for use as a picking table. The coal can be readily hand-picked as it passes over this horizontally reciprocating trough. The drive mechanism for reciprocating both receiving and loading chutes is designed to impart a movement to the horizontal trough or chute 43 which is characterized by a progressively accelerated speed for the greater part of the forward stroke with a quick reverse and a progres sively accelerated speed for the greater part of the return stroke. This particular mechanism is illustrated and described in Patent No. 1,386,505 issued to Richard S. J acobsen August 2, 1921 entitled Means for operatin reciprocating conveyors and screens, an

comprises a pair of connecting rods 44 having operative connection at one end with the side of the loading chute at the roller shaft 26 and extend to the eccentrics 45 which are mounted on the non-uniformly rotating shaft 46 which imparts or transmits through the eccentrics 45 and their connecting rods, a motion which is characterized by progressive acceleration and retardation respectively for the greater part of each -forward and backward stroke. Mounted on the shaft 46 and oppositely to the eccentrics 45 is an eccentric 47 and connecting rod 48 which has operative connection with the horizontal picking table chute 43 for imparting said variable motion in such man ner that all material discharged on the horizontal picking table chute 43 will be conveyed forwardly during its reciprocation.

tnally mounted with ;respect to the pulley 52 and bearings 50- and 51, Qindicatedxin views 6 and .9.) is the ;crank .armw5'3 which; isskeyed to the shaft .and which has operative :OOH-

nection with the ;pulley :52 through the cast. steelilink 54' and .connecting:;pins :55 and 156;:

The twobearin'gs 50 and filgareoppositely disposed and axially aligned ,vandc spaced aparta distance to aceommodatethe'cran'k arm 54 between them on the shaft rinzptlre: manner Iiexplained. The eccentrics A5: and 47 are each composed, asshown, of .an eccentriccamon-tthe.shaftsandm strap onieach.

cam, so that each connecting -:rod is recip rocated positively on opposite directions :by

its allottedeccentric cam onthesh-aft. :The horizontally disposed conveyor 43 ;and chute 24, as-is well known, have what mayibe called ;a reverse [motion conveying action,

and are operated in this manner in a. very positive and :reliable way the eccentrics ontheshaftAG, which latte-rand the rotary. driving member 52 are mounted, as shown and described,it-o rotate zabout'gparallel axes, with a connection from the rotary member to the shaft, so that the constant speed rotation of the pulley 0r rotary member is converted into a variable speed rotation on the part of said shaft. Shaft 46 is eccentrically mounted to rotate on the bearings 50 and 51, so that the axis of said shaft is fixed relatively to the parallel axis of the pulley, and the distance between these two axes will depend, of course, upon the exact character of the motion required for operating the conveyors. 1

It is obvious that any other type of mechanism similar to that above described can be used for operation of the picking table and loading chute.

In the modification illustrated by Figs. 10 to 13 inclusive, the receiving chute is omitted and the coal or other material is discharged directly upon the loading chute 24 from the end of a curved chute 57 which can be in one instance movable, as the curved end of a reciprocating screen, or it may be a stationary chute. The driving mechanism comprises a pair of eccentrics 58 and connecting rods 59 mounted on a shaft 60 operated by the power driven pulley 61.

I claim: I i

1. Means for conveying materials from a higher level to a lower. comprisinga supporting frame pivotally mounted at its upper end, fixed guides on said frame, and a reciprocating loading chute having rollers mounted on said guides, said guides being mllersarwhereby asaid-i chute is 'iI'BGlPI'OGfiztEd' inna substantiallyghonizontal 2 plane. 2. Means for conveying materials Efrom ta higherllevel to; alower, comprising Ta supporting- ,ifmmevp'ivotally. "mountedat 5 its -up-. per; end, a plurality of; guides fined zonasaid' frame, and irec-iprocating loading-chute having. .rolle-rs -mounte-d on said- :guides, ithe'; uppermost; roller guides .having an arcuate tread formed with a -.radiusyh-aving its roenterico'ncentric witlnthe pivotal amounting-ofi f 3. The apparatus embodied-zin-aclaim 1,; and JIIQEI' IlS maising. or. lowering flsaid .suppo tingsaid-chutes, z g .4. =The apparatus-embodied yin, claiml,

name during theireciprocation of combination with can. iinclined .reciprocatingchute adapted to,- rejceiwe materi al. and :feed

same (-tjo the loading. chutev on the frame, and 1 oppositely disposed; 3 reciprocating lmec ha-i nism for said ;-.chute' ararranged for partially" counter-balancing the momentum :of the two chutes: 5. The apparatus embodied Tin-claim 1, in

combination .withjan inclined horizontal-1y I reciprocating chute adapted to treceive mas terialv and feedsame to the loadingchute on said frame, and idrivingwgmechanism ar ranged to partially counterbalance .the ,-mo mentum of the two chutes during their reciprocation.

6. The apparatus embodied in claim 2, in combination with an inclined reciprocating chute adapted to receive material and feed same to the loading chute on the frame, and oppositely disposed reciprocating mech anism for said chute arranged for partially counter-balancing the momentum of the two chutes, and means for raising or lowering the supporting frame with the loading chute during the reciprocation of the chutes.

7 The apparatus embodied in claim 2, in combination with an inclined horizontally reciprocating chute adapted to receive material and feed same to the loading chute on said frame, and driving mechanism arranged to partially counterbalance the momentum of the two chutes during their reciprocation, and means for raising or lowering the supporting frame with the 7 loading chute during the reciprocation of the chutes. r

8. The apparatus embodied in claim 1, in combination with a reciprocating horizontal trough or chute adapted to convey the-ma chute, and oppositely disposed reciprocating mechanism for said chutes, arranged for partially counterbalancing the momentum of the two chutes.

10. The apparatus embodied in claim .1, in combination with a reciprocating horizontal trough or chute adapted to convey the material in a horizontal plane to the loading chute, and oppositely disposed reciprocating mechanism for said chutes. arranged for partially counterbalancing the momentum of the two chutes, said mechanism imparting reverse conveying actions to said chutes.

11. The apparatus embodied in claim 2, in combination with a reciprocating horizontal trough or chute adapted to convey the material in a horizontal plane and, feed same'to' the. loading chute, and mechanism for reciprocating said chutes to convey the material thereon, and means for raising or lowering the supporting frame with the loading chute during the reciprocation of both chutes.

12. The apparatus embodied in claim 2, in combination with a reciprocating horizontal trough or chute adapted to convey the material in a horizontal plane to the loading chute, and oppositelydisposed reciprocating mechanism for said chutes, arranged for partially counterbalancing the momentum of the two chutes, and means for raising or lowering the supporting frame with the loading chute during the reciprocation of both chutes.

13. The apparatus embodied in claim'2, in combination with a reciprocating horizontal trough or chute adapted to convey the material in a horizontal plane to the loading chute, and oppositely disposed reciprocating mechanismfor said chutes, ar-

ranged for partially counterbalancing the momentum of the two chutes, said mech anism imparting reverse conveying actions to said chutes, and means for raising or lowering the supporting frame withv the loading chute during the reciprocation of both chutes.

14:. Means for conveying materials from a higher level to a lower, comprising a supporting frame pivotally mounted near its upper end, fixed guides on said frame, and a reciprocating loading chute having rollers mounted on said guides, said guides afi'o-rding a tread for said rollers and being :so

configured as to ensure a reciprocation of v said chute in a substantially horizontal plane.

In witness whereof, I have hereunto subscribed my name this 16th day of December FREDERICK A. KREHBIEL. 

